Ключевые слова: abstract, alert, alertness, analyze, arrhythmia, background, beat, cardiogram, care, checkup, clinic, concept, death, diagnostic, disease, doctor, ecg, ekg, emergency, equipment, examination, graphic, health, healthcare, heart, heartbeat, hospital, human, icu, ideas, illness, industrial, industry, medical, medicine, monitoring, patient, pulsating, pulse, scientific, service, study, support, surveillance, technical, technology, trace, ward, workup,